Govebnob valve



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- Gov-Eamon VALVE. No. 301,774. Patented July 8, 1884.

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GovBRNoR VALVE.

No. 391,774. V, Patented .July 8, 1884.

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i Nrrnn STATES JAMES TATE, OF BRADFORD, COUNTY OF YORK, ENGLAND.

GOVERNOR-VALVE.

CPECEFICATGN forming part of Letters Patent No. 301,774, dated July 8, 1884.

Application filed Septcnibcrlz,1883. (No modem Pntentedin England September 21,1583, No.4,:i(19; in Belgium Scpteinberll, 1853, No. 62.659; in France September-ill. i893, No. 157,666, and in Germany September' 1583, N0. 26,6852.

To all wif/om. t may concern.-

Be it known that I, JAMES TATE, a subject of the Queen oi' Great Britain and Ireland, and residing at Bradford, in the county of York, England, have invented certain lnr proveniente in the Construction of Governor'- Valves, of which the followingis a specifica The object of my invention is to construct Valves of steam-engines in such a manner that the same can be automatically closed, the apparatus being so arranged as to act direct upon the valveseating cover; and it consists in securing to the valve -easing a cylinder in which is tted a piston that is connected to the cover of the vvalve-sentii]g by a spindle. The cylinder-piston, when the valve is open, has the pressure of steam on both sides of it, which, when the magnet is operated upon by electricity, or the weight liberated by a cord, as the case may be, in the manner hereinafter described, relieves the pressure on one side of the piston, the pressure on the other side closing the valve.

In the accompanying drawings, Figure l represents an elevation of a stopyalve fitted Fig. 2 is a vert-ical section through thee/enter ofthe same, except the valve-spindle and piston.

The apparatus illustrated by these figures shows the arrangement for clo'sing the valve whenthe pressure is flowing from the under side of the seating in the direction indicated by the arrow; and Fig. 3 is a side View of the magnet-plate, showingethe connections between the weight R and the spindle of the tap. Fig. i is a Vertical section or' a modification, and Fig. 5 is a sectional plan of the pistoncylinder.

To the top flange oi the stop-valve easing A, I secure the cylinder-bracket,B,wliich has the ange D recessed in the flange of the bracket B, so as to form a blank end to the cylinder C." This cylinder is fitted with apiston, E,which is secured on the valve-spindle F, thespindle being connected to the valve V, and continued iu'the opposite direction through thesocketed screw G. Around the screw G is a collar having a feather-key se curedthereto,whioh fits into a groove cut lon- Kgitudin'ally iu the socketed screw G, and to the collar is also secured one end of a coiled spring, J, the other cnd of which is secured to the casing K.

In order to open the valve, the nutL is run down the thread on ralvespindle F against the boss of hand-wheel G. The latter is then turned, the socketed screw G raising the valve V from the facing and coiling up the spring J, which is ot'siinilar construction to sprlngs used in the chain-barrels of watches. When the valve has been opened in the manner described, the nut- L is run back to the position shown on drawings and the pressure admitted onto both sides of the piston E-to the top side 4be fixed in any convenient position and wires Y connected thereto 'extending to any place or places in the works, alud when it is desired to close the valve the electric circuit is coinpleted by any well-known method, which causes the magnet N to attract the armature Pto the said magnet, thereby allowing the weight R' to fall in the direction of the curved arrow. The projections of the boss on the weight comiyilg in contact with the pin S, passing through the spindle in tap T, opens the same and allows the pressure to escape through the pipe U to the enginecondeuser or the atmosphere. The pressure on the opposite side of the piston, being maintained through the opening C', overcomes theifriction of the metallic packing M and forces the piston E toward theyalveseat. The sooketed screw G being thus relieved, the spring J uncoils, and the feathered key in the collar causes the socketed screw G to revolve, which slides through the collar and follows up the spindle Ff finally closing the valveV; or, in place of the magnet N, a cord may be secured to the armature l?, as at P', and oonducted to some distant place, which, when pulled, raises the. armature l?, thereby liberating the weight R, which acts upon the tapspindle S in the manner as before described. When the pressure inthe pipes is on the top side of the valveseating cover V, flowing through the opening O, the apparatus is constructed, as shown by Fig. 4 on Sheet 2, without the coiled spring` J. The cylinder C and piston E are constructed and attached to the valve in the manner as before described, except there is' no opening through the flange D, the pressure to the top of the cylinder being conveyed from the pipes at the under side of the valveseating through pipe H. lThe armature P and attachments to the under side of piston-block are arranged as before described. v A The valve, when constructed as shown by Fig. 4, is opened in the manner as before described, and when it is desired to close the valve the electric circuit is completed or the cord pulled, as the case may be, and the weight R operated upon, releasing the pressure from the under side of the piston E, as before mentioned, the pressure on the other side actuating the piston until the valve V is tight upon the seating.

By constructing valves in the manner described, and when used for supplying engines With steam, the Valve can be closed and the engine stopped froml any part of the Works to which the'wires or cord is conducted; and in the case When the magnet N is used, should the engine be running above or belovT the regulated speed, it can be stopped by arranging the circuit-Wires, that when. the connectinglever or the socketed traversing collar on the governor come in contact with the Wires or metallic attachments thereto the electrical circuit is thereby completed, thus causing the Weight R to fall and the valve to close 'in the manner as before described.

I claim as my invention- The combination of a valve and a piston controlling the same, a steam-cylinder in which the piston Works, steam-inlet and anoutletpipe U, valve therefor, Weight R, and armature I?, all substantially as set forth.

In testimony whereof I havesigned my naine 

